{% extends 'base.html' %}
{% block content %}
<div class="btn-group">
      <button type="button" class="btn btn-primary">签到</button>
      <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
        <span class="caret"></span>
        <span class="sr-only">Toggle Dropdown</span>
      </button>
      <ul class="dropdown-menu">
        <li><a href="#">迟到</a></li>
        <li><a href="#">早退</a></li>
        <li><a href="#">请假</a></li>
        <li><a href="#">旷课</a></li>
      </ul>
</div>
{% endblock %}